David Bruce Cassidy is an American actor, singer, songwriter and guitarist. He is widely known for his role as Keith Partridge in the 1970s musical/sitcom The Partridge Family. He was one of pop culture's celebrated teen idols, he enjoyed a successful pop career in the 1970s, and he still performs as of 2014.
Cassidy was one of the contestants on Celebrity Apprentice in 2011, in which his daughter Katie Cassidy made a brief appearance at her father's request.
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